I'm trying to learn ndslice. It puzzles me why t3 compiles ok,
but t4 causes a compiler error in the example below. Should I be
able to slice a struct member that is an array?
import std.stdio;
import std.experimental.ndslice;
import std.experimental.ndslice.iteration: transposed;
struct sample{
ulong [10] core_ctr;
}
struct block{
ulong[60] samples;
}
void main() {
auto a1 = new sample[60];
auto t3 = a1.sliced!(ReplaceArrayWithPointer.no)(3,4,5);
auto b1 = new block;
auto t4 = b1.samples.sliced!(ReplaceArrayWithPointer.no)(3,4,5);
}
====== results in error
************ Building D project: nd4 ************
Running: "C:\Program Files\dub\dub.exe" build
Performing "debug" build using dmd for x86.
dip80-ndslice 0.8.4: target for configuration "library" is up to
date.
nd4 ~master: building configuration "application"...
src\app.d(16,58): Error: template
std.experimental.ndslice.slice.sliced cannot deduce function from
argument types !(cast(Flag)false)(ulong[60], int, int, int),
candidates are:
C:\Users\rlxv10\AppData\Roaming\dub\packages\dip80-ndslice-0.8.4\source\std\experimental\ndslice\slice.d(39,6):
std.experimental.ndslice.slice.sliced(Flag mod = ReplaceArrayWithPointer.yes, Range,
Lengths...)(Range range, Lengths lengths) if (!isStaticArray!Range && !isNarrowString!Range
&& allSatisfy!(isIndex, Lengths) && Lengths.length)
C:\Users\rlxv10\AppData\Roaming\dub\packages\dip80-ndslice-0.8.4\source\std\experimental\ndslice\slice.d(47,6):
std.experimental.ndslice.slice.sliced(Flag mod = ReplaceArrayWithPointer.yes, uint N,
Range)(Range range, auto ref size_t[N] lengths, size_t shift = 0) if (!isStaticArray!Range
&& !isNarrowString!Range && N)
C:\Users\rlxv10\AppData\Roaming\dub\packages\dip80-ndslice-0.8.4\source\std\experimental\ndslice\slice.d(116,1):
std.experimental.ndslice.slice.sliced(Names...) if (Names.length &&
!anySatisfy!(isType, Names) && allSatisfy!(isStringValue, Names))
dmd failed with exit code 1.
^^^ Terminated, exit code: 2 ^^^
